The MAX4717/MAX4718 are low-voltage, low on-resistance (RON), dual single-pole/double throw (SPDT) analog switches that operate from a single +1.8V to +5.5V supply. These devices are designed for USB 1.1 and audio switching applications. The MAX4717 features two 4.5Ω RON (max) SPDT switches with 1.2Ω flatness and 0.3Ω matching between channels. The MAX4718 features one 4.5Ω RON (max) SPDT switch and one 20Ω RON (max) SPDT switch. The 20Ω switch has a guaranteed matching and flatness of 0.4Ω and 1.2Ω, respectively. These switches offer break- before-make switching (1ns) with tON <80ns and tOFF <40ns at +2.7V. The digital logic inputs are +1.8V logic compatible with a +2.7V to +3.6V supply. These switches are packaged in a chip-scale package (UCSP™), significantly reducing the required PC board area. The chip occupies only a 2.0mm ✕ 1.50mm area and has a 4 ✕ 3 bump array with a bump pitch of 0.5mm. These switches are also available in 10-pin µMAX® and 10-pin TDFN packages.
The MAX4717 and MAX4718 are low‑voltage, low‑on‑resistance dual single‑pole/double‑throw (SPDT) analog switches from Maxim. They operate from a single +1.8 V to +5.5 V supply and are intended for USB 1.1, audio‑signal routing, headphone switching, and other low‑voltage data‑acquisition applications.
Both devices feature break‑before‑make switching (1 ns), fast turn‑on (<80 ns) and turn‑off (<40 ns) times, high off‑isolation (‑55 dB at 10 MHz), low crosstalk (‑80 dB at 10 MHz), and a total harmonic distortion of only 0.03 %. They are offered in Maxim’s chip‑scale UCSP package as well as 10‑pin µMAX and TDFN packages.
| On‑Resistance (RON) – MAX4717 | 4.5 Ω (max) |
|---|---|
| On‑Resistance (RON) – MAX4718 | 20 Ω (max) |
| Bandwidth (‑3 dB) | > 300 MHz |
| Turn‑On Time | < 80 ns |
| Turn‑Off Time | < 40 ns |
| Supply Voltage Range | +1.8 V to +5.5 V |
| Off‑Isolation (10 MHz) | -55 dB |
| Crosstalk (10 MHz) | -80 dB |
They operate from a single +1.8 V to +5.5 V supply.
The MAX4717 has a maximum on‑resistance of 4.5 Ω.
The switches have a -3 dB bandwidth greater than 300 MHz.